Hi, first post! This forum in general and this thread in particular have been very helpful in making my first Polerouter (and first Universal for that matter) purchase, thank you all for sharing.
I've recently acquired what I believe to also be an example of a transitional Pol(a/e)router, in this case a 20217/1. Photos below.
Curiously enough, this watch's serial number matches the highest serial number listed for the second run of 20217/1 Polarouters in the table at
https://universalgenevepolerouter.com/reference-tables/reference-table-steel-gold-plated/ - I haven't reached out to the owner of the site yet but would be interested to know the source for this data.
When I purchased the watch I was mainly concerned about the crown, but from looking at this thread I think there's at least a decent chance that it's original. Other than that, the crystal is neither original nor the correct profile, so I'm in the process of rectifying that.
Thanks again everyone for being such a great resource, hope this additional data point helps!
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